"It's just something that happened to be in a place that's getting a lot more attention because obviously it's in a Corvette museum," Polk said.

Sinkholes are common in the area, the executive director of the museum said they even had sinkhole insurance, but teams of experts were taking a look to see if this one will grow.

"It appears reasonably stable, but we might see a little bit more falling in over time, um, but right now it's difficult to tell," Western Kentucky University Civil Engineering Professor Matt Dettman explained.

As carpet tiles were peeled back, cracks in the floor were revealed.

"It appears to be migrating away from the building, not towards the main part of the building," Dettman said.

Engineers said the museums main building is not in danger.

"There's no need for panic or any indication that there's any other causes or issues," Polk said.

The dome is a separate structure connected to the main building through a hallway. The dome will be blocked off by a plywood wall before the rest of the museum opens Thursday.

Pittsburgh Steelers offensive tackle and former Army Ranger Alejandro Villanueva (78) stands outside the tunnel alone during the national anthem before an NFL football game against the Chicago Bears, Sunday, Sept. 24, 2017. (AP Photo/Nam Y. Huh)

The Pittsburgh Steelers will be on the field during the national anthem for next weekend's game against the Baltimore Ravens.